Weight of '76 vs. '78 Liquifire Tunnel & Bulkhead

[Liquify]

Anyone know offhand what the approximate weight difference is between a '76 340 Liquifire and '78 340 Liquifire? I'm referring to only the tunnel and bulkhead - all other parts removed. Thanks for your help
Dick

[skoalmint]

If you are talking tunnel to tunnel there is probably not much difference maybe 2 to 4 lbs.Its all the other parts that lightend up the 78's,steering bracket ,belt guard ,motor mt,skid,tunnel coolers,but they added other means for cooling so that is probably a wash,bulkhead frame,hoods ? Dont now if thay helps Brock